Proceedings of the 2nd International Conference on Quran and Hadith Studies Information Technology and Media in Conjunction with the 1st International Conference on Islam, Science and Technology, ICONQUHAS & ICONIST, Bandung, October 2-4, 2018, Indonesia

Research Article

The Implication of Sky Quality Meter Technology in Observing the Dawn To Determine Subh Prayer Time

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  • @INPROCEEDINGS{10.4108/eai.2-10-2018.2295598,
        author={Maskufa  Maskufa and D.R.  Munazat and Adi  Damanhuri and Ahmad Bisyri Abd. Shomad},
        title={The Implication of Sky Quality Meter Technology in Observing the Dawn To Determine Subh Prayer Time},
        proceedings={Proceedings of the 2nd International Conference on Quran and Hadith Studies Information Technology and Media in Conjunction with the 1st International Conference on Islam, Science and Technology,  ICONQUHAS \& ICONIST, Bandung, October 2-4, 2018, Indonesia},
        publisher={EAI},
        proceedings_a={ICONQUHAS},
        year={2020},
        month={5},
        keywords={dawn sky subh prayer time sqm technology},
        doi={10.4108/eai.2-10-2018.2295598}
    }
    
  • Maskufa Maskufa
    D.R. Munazat
    Adi Damanhuri
    Ahmad Bisyri Abd. Shomad
    Year: 2020
    The Implication of Sky Quality Meter Technology in Observing the Dawn To Determine Subh Prayer Time
    ICONQUHAS
    EAI
    DOI: 10.4108/eai.2-10-2018.2295598
Maskufa Maskufa1,*, D.R. Munazat1, Adi Damanhuri1, Ahmad Bisyri Abd. Shomad1
  • 1: UIN Syarif Hidayatullah, Faculty of Law and Syaria Jakarta, Indonesia
*Contact email: maskufa@uinjkt.ac.id

Abstract

The Subh time specified in the prayer schedule has been considered as early as 20 to 30 minutes, whereas prayer must be done on time. This study aims to verify the phenomenon of dawn shadiq (astronomical twilight) as a mark of dawn time. The research was carried out by observation method using Sky Quality Meter technology and the results will be analyzed with the approach of ushul fiqh science, astronomy, and mathematics. The approach to the science of ushul fiqh is to analyze the normative aspects, the approach of astronomy is to analyze the phenomenon of dawn, and the approach of mathematics to analyze the results of dawn observations with Sky Quality Meter. The results of the study showed that at dawn Shadiq can be observed factually at a depression angle of 15 ° to 18 ° below the equivalent horizon of 60 to 72 minutes before sunrise. The magnitude of the depression angle is different from the determination of the Ministry of Religion of the Republic of Indonesia and Islamic Organizations that is equal to 20 ° below the horizon equivalent to 80 minutes before sunrise. The implication of the findings of this study is the shift of dawn time, imsak time and the start time of fasting 8 to 20 minutes from the time specified in the prayer time schedule.